Cgs synth

To make it even simpler, all 100K resistors attached to the negative
summing node of each op amp need to be matched to each other. All ten
100K resistors don't need to be matched to each other.

The 10K resistors should all be matched, since they create a long
voltage divider chain.

John Loffink
jloffink@...

The Microtonal Synthesis Web Site
http://www.microtonal-synthesis.com/

The Wavemakers Modular and Integrated Synthesizer Web Site
http://www.wavemakers-synth.com/

> Yes, almost, but make sure your meter has better than 1% accuracy.

Many

> don't.
>
> You don't have to match 100K ohms. You just have to match the

resistors

> to each other, since the gain is determined by their ratios to each
> other. So if they're all 99.83 K, that's alright.
>
>
> >
> > Given that Ken recommends matching most of the resistors in the cv
> cluster
> > module, I thought I would give it a try. All I have is a digital
> > voltmeter. Is this the only piece of equipment I need to try

matching

> > resistors? Is it as "simple" as reading the ohms on my meter (say,
> about
> > 100 kohms for 100k resistor) and selecting the resistors that have

the

> > closest readings to 100k ohms and to each other?
> >
> > Thanks ("diy electronically challenged"), Jeff
> >
> >
>
>
>
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